<template>
  <div>
    <el-form ref="generateForm"
      label-suffix=":"
      :size="data.size"
      :model="models" :rules="rules" :label-position="data.labelPosition" :label-width="data.labelWidth + 'px'">
      <template v-for="item in data.list">
        <template v-if="item.type == 'collapse'">
          <el-collapse>
            <el-collapse-item :title="item.name" name="1">
              <template v-for="citem in item.columns[0].list">
                <el-form-item v-if="citem.type=='blank'" :label="citem.name" :prop="citem.model" :key="citem.key">
                  <slot :name="citem.model" :model="models"></slot>
                </el-form-item>

                <el-row v-else-if="citem.type=='grid'"
                        :key="citem.key"
                        type="flex"
                        :gutter="citem.options.gutter ? citem.options.gutter : 0"
                        :justify="citem.options.justify"
                        :align="citem.options.align"
                >
                  <el-col v-for="(col, colIndex) in citem.columns" :key="colIndex" :span="col.span">


                    <template v-for="ccitem in col.list">
                      <el-form-item v-if="ccitem.type=='blank'" :label="citem.name" :prop="citem.model" :key="citem.key">
                        <slot :name="ccitem.model" :model="models"></slot>
                      </el-form-item>
                      <genetate-form-item v-else
                                          :key="ccitem.key"
                                          :models.sync="models"
                                          :remote="remote"
                                          :rules="rules"
                                          :widget="ccitem"
                                          @input-change="onInputChange">
                      </genetate-form-item>
                    </template>
                  </el-col>
                </el-row>
                <genetate-form-item v-else
                                    :key="citem.key"
                                    :models.sync="models"
                                    :remote="remote"
                                    :rules="rules"
                                    :widget="citem"
                                    @input-change="onInputChange">
                </genetate-form-item>
              </template>
            </el-collapse-item>
          </el-collapse>
        </template>

        <template v-else-if="item.type == 'grid'">
          <el-row
            :key="item.key"
            type="flex"
            :gutter="item.options.gutter ? item.options.gutter : 0"
            :justify="item.options.justify"
            :align="item.options.align"
          >
            <el-col v-for="(col, colIndex) in item.columns" :key="colIndex" :span="col.span">


              <template v-for="citem in col.list" >
                <el-form-item v-if="citem.type=='blank'" :label="citem.name" :prop="citem.model" :key="citem.key">
                  <slot :name="citem.model" :model="models"></slot>
                </el-form-item>
                <genetate-form-item v-else
                  :key="citem.key"
                  :models.sync="models"
                  :remote="remote"
                  :rules="rules"
                  :widget="citem"
                  @input-change="onInputChange">
                </genetate-form-item>
              </template>
            </el-col>
          </el-row>
        </template>

        <template v-else-if="item.type == 'blank'">
          <el-form-item :label="item.name" :prop="item.model" :key="item.key">
            <slot :name="item.model" :model="models"></slot>
          </el-form-item>
        </template>

        <template v-else>
          <genetate-form-item
            :key="item.key"
            :models.sync="models"
            :rules="rules"
            :widget="item"
            @input-change="onInputChange"
            :remote="remote">
          </genetate-form-item>
        </template>

      </template>
    </el-form>
  </div>
</template>

<script>
import GenetateFormItem from './GenerateFormItem'
import {loadJs} from '../util/index.js'

export default {
  name: 'fm-generate-form',
  components: {
    GenetateFormItem
  },
  props: ['data', 'remote', 'value', 'insite'],
  data () {
    return {
      models: {},
      rules: {}
    }
  },
  created () {
    this.generateModle(this.data.list)
  },
  mounted () {
  },
  methods: {
    generateModle (genList) {
      for (let i = 0; i < genList.length; i++) {
        if (genList[i].type === 'grid') {
          genList[i].columns.forEach(item => {
            this.generateModle(item.list)
          })
        } else {
          if (this.value && Object.keys(this.value).indexOf(genList[i].model) >= 0) {
            this.models[genList[i].model] = this.value[genList[i].model]
          } else {
            if (genList[i].type === 'blank') {
              this.$set(this.models, genList[i].model, genList[i].options.defaultType === 'String' ? '' : (genList[i].options.defaultType === 'Object' ? {} : []))
            } else {
              this.models[genList[i].model] = genList[i].options.defaultValue
            }
          }

          if (this.rules[genList[i].model]) {

            this.rules[genList[i].model] = [...this.rules[genList[i].model], ...genList[i].rules.map(item => {
              if (item.pattern) {
                return {...item, pattern: eval(item.pattern)}
              } else {
                return {...item}
              }
            })]
          } else {

            this.rules[genList[i].model] = [...genList[i].rules.map(item => {
              if (item.pattern) {
                return {...item, pattern: eval(item.pattern)}
              } else {
                return {...item}
              }
            })]
          }
        }
      }
    },
    getData () {
      return new Promise((resolve, reject) => {
        this.$refs.generateForm.validate(valid => {
          if (valid) {
            resolve(this.models)
          } else {
            reject(new Error('表单数据校验失败').message)
          }
        })
      })
    },
    reset () {
      this.$refs.generateForm.resetFields()
    },
    onInputChange (value, field) {
      this.$emit('on-change', field, value, this.models)
    },
    refresh () {

    }
  },
  watch: {
    data: {
      deep: true,
      handler (val) {
        this.generateModle(val.list)
      }
    },
    value: {
      deep: true,
      handler (val) {
        console.log(JSON.stringify(val))
        this.models = {...this.models, ...val}
      }
    }
  }
}
</script>

<!--<style lang="scss">-->
<!--// @import '../styles/cover.scss';-->
<!--</style>-->
